Question

14.
A metal salt MX when exposed to light splits up to form metal M and
gas X, Metal M is used to make ornaments whereas gas X, is used
in making bleaching powder. The salt MX is used in black & white
photography
(a)
Identify the metal M and gas X,
(b) Identify MX.
(c) Write down the chemical reaction when salt MX is exposed to
sunlight.​

Answer 1

Answer:

Explanation:

a )The metal M is Ag silver and gas X is Cl2 .

b ) MX is AgCl

c) the reaction is know photolytic decomposition reaction

AgCl --- long arrow ---- Ag + Cl2

The above reactions are used in black and white photography

Cl2 is used in preparation of bleaching powder